Is money earned from bank investment certificates, which the mufti previously ruled permissible, but then it was said they are forbidden, considered unlawful for me, and what is the legitimate way to purify this money?

The question encompassed four matters:

First: The ruling on investment certificates: All types (A, B, C) are impermissible (haram). Anyone who has issued a fatwa permitting them has made a clear error, unless the investment certificates in the questioner's country have a different system free from Sharia prohibitions.

Second: The ruling on profits and funds gained from investment certificates: Whatever was consumed from them before knowledge of their impermissibility does not necessitate giving an equivalent amount in charity. As for what was acquired from them after knowledge of their impermissibility, or whatever remained from what was earned before knowing their impermissibility, it is obligatory to give it in charity for charitable causes and for the benefit of Muslims.

Third: The ruling on investing funds in the Saudi Finance Bank: This depends on whether this bank adheres to Sharia controls in its dealings. The questioner can ask reliable scholars in his country.

Fourth: The amount recommended for the poor: This is a good deed. However, it is obligatory to give in charity what remained of the profits from investment certificates after knowledge of their impermissibility, and the amount consumed from them after knowledge of their impermissibility, according to the previous details. A conditional bequest is not sufficient; rather, it must be put into immediate effect.