Is it permissible to have anal intercourse with one's wife, based on her desire, under the pretext that she does not feel pleasure except from that position?

If the penetration is from the woman's rear into her anus, then it is forbidden and a major sin, for the Prophet, peace and blessings be upon him, said: "Cursed is he who has intercourse with a woman in her anus." However, if the penetration is from her rear into her front (vagina), there is no harm in that, for Allah Almighty said: "Your women are a tilth for you, so approach your tilth from wherever you please."