Hadith.1209 - Abu al-Maghra' Humayd ibn al-Muthanna said: "I was with Imam Jafar ibn Muhammad Al-Sadiq (as) when Hafs al-Kalbi asked him: "When I am behind the Imam and he is reciting aloud, may I make supplications and seek refuge (in Allah (swt))?" Imam (as) said: "Yes, you may supplicate."