Answered by our Shaykh, the ‘Allaamah, the Sincere Adviser, Abu ‘Abdirrahman Yahya bin ‘Ali Al-Hajoori – may Allaah preserve him –
I am a student of knowledge here and my father sends me money, so do I accept it with the knowledge that it’s impermissible money? (1)
If you come to know that the money is certainly impermissible, then don’t accept it.
The Prophet ﷺ said :
“Meat which came from the impermisible does not enter paradise, the hell fire is more deserving of it”.(2)
(1) شذرات من أوائل الدروس العامة للشيخ يحيى حفظه الله تعالى
(2)عن كعب بن عجرة وقد تقدم.
Abu ‘Abdirrahman ‘Abdullaah bin Ahmed Ash-Shingaani