Sahih al-Bukhari 2313
Sahih al-Bukhari · Book 40: Representation, Authorization, Business by Proxy · The deputyship for managing the Waaf and the expenses of the trustee. The trustee can provide his friends and can eat from it reasonably.
Narrated `Amr:
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ ، حَدَّثَنَا سُفْيَانُ ، عَنْ عَمْرٍو ، قَالَ فِي صَدَقَةِ عُمَرَ ـ رضى الله عنه ـ لَيْسَ عَلَى الْوَلِيِّ جُنَاحٌ أَنْ يَأْكُلَ وَيُؤْكِلَ صَدِيقًا {لَهُ} غَيْرَ مُتَأَثِّلٍ مَالاً ، فَكَانَ ابْنُ عُمَرَ هُوَ يَلِي صَدَقَةَ عُمَرَ يُهْدِي لِلنَّاسِ مِنْ أَهْلِ مَكَّةَ، كَانَ يَنْزِلُ عَلَيْهِمْ .
Concerning the Waqf of `Umar: It was not sinful of the trustee (of the Waqf) to eat or provide his friends from it, provided the trustee had no intention of collecting fortune (for himself). Ibn `Umar was the manager of the trust of `Umar and he used to give presents from it to those with whom he used to stay at Mecca.