Chapter: It is disliked to single out Friday for fasting, unless it coincides with a day that one customarily fasts

I asked Jabir b. 'Abdullah (Allah be pleased with both of them) as he was circumambulating the House (Ka'ba) whether the Messenger of Allah (ﷺ) had forbidden the fasting on Friday, whereupon he said: Yes, by the Lord of this House.

Muhammad b. 'Abbas b. Ja'far reported that he asked Jabir b. Abdullah (Allah be pleased with them), whether he had heard like this from the Messenger of Allah (ﷺ).

None among you should observe fast on Friday, but only that he observes fast before it and after it.

Do not single out the night (preceding) Friday among the nights for prayer and do not single out Friday among days for fasting but only when anyone among you is accustomed to fast (on dates) which coincide with this day (Friday).