“I rarely saw the Messenger of Allah (ﷺ) not fasting on a Friday.”
Sunan Ibn Majah Book 7, Hadith 88
← Previous Hadith “While I was circumambulating the House, I asked Jabir bin ‘Abdullah: ‘Did the Prophet (ﷺ) forbid fasting on a Friday?’ He said: ‘Yes, by the Lord of this House.’”

Sunan Ibn Majah Book 7, Hadith 87 Next Hadith → “Do not fast on Saturdays apart from days when you are obliged to fast. If anyone of you cannot find anything other than grape stalks or the bark of a tree, let him suck on it.” Another chain from 'Abdullah bin Busr, from his sister who said: "The Messenger of Allah (ﷺ) said," and he mentioned similarly.

Sunan Ibn Majah Book 7, Hadith 89