Isa b. Abdallah al-Qummi entered in to see Abi Abdillah عليه السلام who proceeded to exhort him about certain things then he [the Imam] bid him farewell and he [Isa] left. The Imam said to his servant: ‘call him back’ so he [the servant] went out after him and he [Isa] returned. He [the Imam] again exhorted him about certain things then bid him farewell and he [Isa] departed. He [the Imam] said to his servant for the second time: ‘call him back’ so he [the servant] went out after him and [when Isa returned] he [the Imam] exhorted him about certain other things then he [the Imam] said: O Isa b. Abdallah – Allah Mighty and Majestic says: “Enjoin your people to prayer” (20:132) and you are from us the Ahl al-Bayt [people of the House], so when the sun is on this side [i.e. west] and is this distant from such and such point in the afternoon then pray six units [of Nafila]. He [Ya`qub] said: then he [the Imam] bid him farewell and kissed the spot in between his [Isa’s] eyes before he [Isa] went his way.