42. Invocation against the distractions of Satan during the prayer and recitation of the Qur'an

Dua 138 ☆

أَعُوذُ بِاللَّهِ مِنَ الشَّيطَانِ الرَّجِيمِ

'A'oothu billaahi minash-Shaytaanir-rajeem.

(Say:) I seek refuge in Allah from Satan the outcast (then spit to your left). (Do this three times reciting in Arabic.)

Reference: Muslim 4/1729.