Muhammad bin Zayd bin 'Abdullah محمد بن زيد بن عبد الله بن عمر · The Chapters on Legal Punishments

“Whoever covers (the sin of) a Muslim, Allah will cover him (his sin) in this world and in the Hereafter.”

“I heard Sa'd and Abu Bakrah both say that they heard directly from Muhammad (ﷺ) saying it and memorized: 'Whoever claims to belong to someone other than his father knowing the he is not his father, Paradise will be forbidden to him.”