Hazrat Abu Ja'far Khatmi narrates that the Messenger of Allah, peace and blessings be upon him, was engaged in the construction of the mosque, and Hazrat Abdullah bin Rawahah was reciting this verse: "Successful is the one who strove to build the mosque." The Messenger of Allah, peace and blessings be upon him, said: "Indeed, successful is the one who made an effort to build the mosque." He recited this verse: "He recites the Qur'an standing and sitting." The Messenger of Allah, peace and blessings be upon him, said: "He recites the Qur'an standing and sitting." At that time, the companions were constructing the mosque.