Sahih Bukhari, Chapter: Sales and Trade

I 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 labour)' (4.6) was revealed concerning the guardian of the orphans who looks after them and manages favorably their financial affairs; If the guardian Is poor, he could have from It what Is just and reasonable, (according to his labour)."