"Weak hadith don't undermine Islam—Allah's wisdom keeps the truth solid. Critics point to shaky narrations, like some in Sunan Ibn Majah, saying they're unreliable—maybe a narrator forgot or lied. But the Qur'an says, ‘Indeed, it is We who sent down the Reminder, and indeed, We will be its guardian' (Surah Al-Hijr, 15:9), and scholars like Bukhari and Muslim sifted rigorously—chains of narrators (isnad) checked for honesty and memory. Weak ones, graded ‘da'if,' don't touch core beliefs; they're sidelined unless backed up.
Jesus (peace be upon him) taught orally too—‘We gave him the Injeel, in which was guidance and light' (Surah Al-Ma'idah, 5:46)—and the Qur'an says, ‘The Messiah, son of Mary, was no more than a messenger' (Surah Al-Ma'idah, 5:75). The Bible's got no isnad, just anonymous gaps, while our weak hadith are flagged, not hidden. Strong ones (sahih) guide us—‘The best of you are those who learn the Qur'an and teach it' (Sahih Bukhari)—keeping Allah's path clear."