Hadith.1294 - Ibrahim al-Karkhi said:
"I said to Imam Jafar ibn Muhammad Al-Sadiq (as): "I am able to face the Qiblah (direction of prayer) while in the mahmil (a covered mount or carrier)."
He (as) replied: "Is this restriction (truly necessary) ? Do you not have in the Messenger of Allah (sw) an example to follow?"