قال رسول الله صلي الله عليه وسلم :
"ليس منا من لم يرحم صغيرنا ولم يعرف شرف كبيرنا"
الراوي: جد عمرو بن شعيب المحدث: الترمذي - المصدر: سنن الترمذي - الصفحة أو الرقم: 1920
خلاصة حكم المحدث: حسن صحيح
Amr bin Shu`aib (May Allah be pleased with him) on the authority of his father who heard it from his father reported: Messenger of Allah (PBUH) said: "He is not one of us who shows no mercy to younger ones and does not acknowledge the honour due to our elders " (At-Tirmidhi and Abu Dawud)

Commentary:
This is an important principle in Islam "showing mercy and compassion for the younger and showing all respect and acknowledging the honour of the elders" There is mercy and respect exchanged between the elders and the younger based on the exchanging love .Who does that of course he is on the way of Muhammad (pbuh )
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عن جندب بن عبد الله رضي الله عنه قال :
إن رسول الله صلى الله عليه وسلم بعث بعثا من المسلمين إلى قوم من المشركين . وإنهم التقوا فكان رجل من المشركين إذا شاء أن يقصد إلى رجل من المسلمين قصد له فقتله . وإن رجلا من المسلمين قصد غفلته . قال وكنا نحدث أنه أسامة بن زيد . فلما رفع عليه السيف قال : لا إله إلا الله ، فقتله . فجاء البشير إلى النبي صلى الله عليه وسلم . فسأله فأخبره . حتى أخبره خبر الرجل كيف صنع . فدعاه . فسأله . فقال " لم قتلته ؟ " قال : يا رسول الله أوجع في المسلمين . وقتل فلانا وفلانا . وسمى له نفرا . وإني حملت عليه . فلما رأى السيف قال : لا إله إلا الله . قال رسول الله صلى الله عليه وسلم " أقتلته ؟ " قال : نعم " فكيف تصنع بلا إله إلا الله إذا جاءت يوم القيامة ؟ " فجعل لا يزيده على أن يقول " كيف تصنع بلا إله إلا الله إذا جاءت يوم القيامة ؟ " .
الراوي: جندب بن عبدالله المحدث: مسلم - المصدر: صحيح مسلم - الصفحة أو الرقم: 97
خلاصة حكم المحدث: صحيح
وفي رواية :
"قال قلت : يا رسول الله ! إنما قالها خوفا من السلاح . قال " أفلا شققت عن قلبه حتى تعلم أقالها أم لا " . فما زال يكررها علي حتى تمنيت أني أسلمت يومئذ"
Jundub bin `Abdullah (May Allah be pleased with him) reported: "Messenger of Allah (PBUH) dispatched a contingent of the Muslims to a tribe of the polytheists. The two sides met (in combat) at one place. A man among the polytheists was so dashing that, whenever he intended to kill a man from Muslims, he killed him. Amongst the Muslims, too, was a man looking forward to (an opportunity of) his (polytheist's) unmindful ness. He (the narrator) said: We talked that he was Usamah bin Zaid (May Allah be pleased with him). When he raised his sword, he (the soldier of the polytheists) uttered: "La ilaha illallah (There is no true god except Allah).'' But he (Usamah bin Zaid) killed him. When the good news of victory reached Messenger of Allah (PBUH) he asked him (about the events of the battle), and he informed him about the man (Usamah) and what he had done. He (Messenger of Allah (PBUH)) sent for him and asked him why he had killed him. He (Usamah) said, "O Messenger of Allah, he struck the Muslims and killed such and such of them.'' And he named some of them. (He continued): "I attacked him and when he saw the sword he said: `La ilaha illallah.''' Messenger of Allah (PBUH) said, "Did you kill him?'' He (Usamah) replied in the affirmative. The Messenger of Allah then remarked, "What would you do with regard to (the utterance): La ilaha illallah, when it comes (before you) on the Day of Resurrection?'' He (Messenger of Allah (PBUH)) added nothing to it but kept repeating, "What would you do with regard to (the utterance): La ilaha illallah, when it comes (before you) on the Day of Resurrection"
Another narration is: Messenger of Allah (PBUH) said, "Did you kill him in spite of his professing La ilaha illallah?'' I said, "O Messenger of Allah! He said out of fear of our arms.'' He (PBUH) said, "Why did you not cut his heart open to find out whether he had done so sincerely or not?'' He continued repeating it until I wished that I had embraced Islam only that day"

Commentary :
We were ordered to make Judgment of people keeping in view their evident actions and leaving their hidden Actions to Allah (swt) .The messenger of Allah (pbuh ) blamed his companion because he killed the man after he uttered " La ilaha illallah," which means "There is no God but Allah " although the man killed many Muslims in the battle and perhaps he meant escaping from death but the messenger of Allah said to his companion "What would you do with regard to (the utterance): La ilaha illallah, when it comes (before you) on the Day of Resurrection" and when the companion said : "He said out of fear of our arms.'' The messenger blamed him saying : "Why did you not cut his heart open to find out whether he had done so sincerely or not?'' The messenger wanted to hold the principle " making Judgment of people keeping in view their evident actions and leaving their hidden Actions to Allah (swt)" even in wars.