An-Nu‘man b. Bashir reported God’s messenger as saying, “Supplication is worship.” He then recited, “And your Lord said, If you call on me I will aswer you.”*
*Qur’an, xl, 60.
Ahmad, Tirmidhi, Abu Dawud, Nasa'i and Ibn Majah transmitted it.
Abu Huraira reported God’s messenger as saying, “Nothing is more honourable in God’s sight than supplication.”
Tirmidhi and Ibn Majah transmitted it, Tirmidhi saying this is a hasan gharib tradition.
Salman al-Farisi reported God’s messenger as saying, “Nothing but supplication averts the decree, and nothing but righteousness increases life.”
Tirmidhi transmitted it.
Ibn ‘Umar reported God’s messenger as saying, "Supplication is beneficial regarding things which have happened and things which have not happened, so devote yourselves to supplication, servants of God."
Tirmidhi transmit…
Jabir reported God’s messenger as saying, “No one offers a supplication without God bringing him what he asks or keeping away from him a like amount of evil, provided he does not ask for something sinful or for breaking…
Ibn Mas'ud reported God’s messenger as saying, “Ask God for some of His bounty, for God likes to be asked, and the most excellent worship is expectation of relief.”
Tirmidhi transmitted it, saying this is a gharib tradit…