'When it was dark and part of the night had passed, Abu 'Abdillah (AS) would take a sack of bread, meat and money, and carry it on his back to the needy of Madina. He would distribute it among them Imam Ja'far b. Muhammad al-Sadiq (AS) whilst they did not even recognise him. When Abu 'Abdillah (AS) passed away, they missed [the aid] and realized that it had in fact been Abu 'Abdillah.'