Ameerul Momineen, Ali b. Abi Talib (a.s.) said – Allah’s Messenger (s.a.w.a.) informed: O Ali! Those who love me and love you and love the Imams from your sons, should thank Allah for the legitimacy of their birth, because no one loves us but those who are legitimate, and no one hates us but those who are illegitimate.
Bashaarah al-Mustafa Le Shiah al-Murtaza v 2 p 150 Al-Amaali p 475 Elal al-Sharaae v 1 p 141