Sahih Bukhari | Volume 3 | Hadith Number 414

Narrated by Hisham bin 'Urwa
From his father who heard 'Aisha saying, "The Holy Verse; 'Whoever amongst the guardians is rich, he should take no wages (from the property of the orphans) but If he is poor, let him have for himself what is just and reasonable (according to his labours)' (4:6) was revealed concerning the guardian of the orphans who looks after them and manages favourably their financial affairs; If the guardian Is poor, he could have from It what Is just and reasonable, (according to his labours)."