Jabir said that God’s Messenger used to say in his prayer after the tashahhud, “The best speech is God’s speech, and the best guidance is Muhammad’s guidance.”
Shaddad b. Aus said that God's Messenger used to say in his prayer, “O God, I ask Thee for steadfastness in carrying out what I am commanded and resolution in following right guidance. I ask Thee to make me grateful for Thy favour and to enable me to worship Thee acceptably. I ask Thee for a sound heart and a truthful tongue. I ask Thee for some of the good of what Thou knowest, I seek refuge in Thee from the evil of what Thou knowest, and I ask Thy forgiveness for what Thou knowest.”
Nasa’i transmitted it, and Ahmad transmitted something similar.
