Allah says(interpretation of the meaning):
“And come not near to the orphan’s property, except to improve it, until he (or she) attains the age of full strength” [al-An’aam 6:152]
“To orphans restore their property (when they reach their age), nor substitute (your) worthless things for (their) good ones; and devour not their substance (by mixing it up) with your own. For this is indeed a great sin.” [An-Nissa, 4:2]
“Verily, those who unjustly eat up the property of orphans, eat up a fire into their own bodies: they will soon be enduring a blazing fire! ” [An-Nissa 4:10]
Abu Hurairah (radhiyallahu ‘anihu) narrated that the Prophet (peace and blessings be upon him) said, “Avoid the seven great destructive sins.” The people enquire, “O Allah’s Messenger! What are they? “He said, “To join others in worship along with Allah; to practice sorcery; to kill the life, which Allah has forbidden except for a just cause, (according to Islamic law); to eat up riba (usury); to eat up an orphan’s wealth; to give back to the enemy and fleeing from the battlefield at the time of fighting; and to accuse chaste women, who never even think of anything touching chastity and are good believers.”(Bukhari)
…Abide by the truth even though your mind deserts you.