Sunan Abi Dawud, Hadith 1640

Abu Said al-Khudri said : Some of the Ansar begged from the Messenger of Allah (May peace be upon him) and he gave them something. They later begged from him again and he gave them something so that what he had was exhausted. He then said :What I have I shall never store away from you but Allah will strengthen the abstinence of him who abstains, will give a satisfaction to him who wants to be satisfied, and will strengthen the endurance of him who shows endurance. No one has been given a more ample gift than endurance.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عَطَاءِ بْنِ يَزِيدَ اللَّيْثِيِّ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّ نَاسًا، مِنَ الأَنْصَارِ سَأَلُوا رَسُولَ اللَّهِ صلى الله عليه وسلم فَأَعْطَاهُمْ ثُمَّ سَأَلُوهُ فَأَعْطَاهُمْ حَتَّى إِذَا نَفِدَ مَا عِنْدَهُ قَالَ ‏ "‏ مَا يَكُونُ عِنْدِي مِنْ خَيْرٍ فَلَنْ أَدَّخِرَهُ عَنْكُمْ وَمَنْ يَسْتَعْفِفْ يُعِفَّهُ اللَّهُ وَمَنْ يَسْتَغْنِ يُغْنِهِ اللَّهُ وَمَنْ يَتَصَبَّرْ يُصَبِّرْهُ اللَّهُ وَمَا أَعْطَى اللَّهُ أَحَدًا مِنْ عَطَاءٍ أَوْسَعَ مِنَ الصَّبْرِ ‏" ‏ ‏.‏

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also referenced under: Hadith 1644 (DarusSalam)