…Every tribe has a tradition and law for marriage. If they observe their tradition and law, their children are considered legitimate.”
After this exchange, Jaʿfar ibn Muhammad al-Sadiq(as) said: “Now, leave me…”
From this day on, no one saw him with Jaʿfar ibn Muhammad al-Sadiq(as) for the rest of his life.
?Ref : selection of “Anecdotes of Pious Men”, by Scholar Murtada Mutahhari (with some changes)