Salaah on Unjustly Acquired Land

Q: Salaah-412: Does the Shari'ah permit the performance of salaah for a few days on land that has been usuurped?

Answer: Although the salaah will be valid, salaah performed there without good reason will be Makrooh if one knows that the land has been usurped.

Fatawa Rahimiyyah vol.2