IN21-distractions of Satan During The Prayer and Recitation of the Qur'an/Something Becoming Difficult For You

IN-21

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

'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

Invocation for when you find something becoming difficult for you

Allaahumma laa sahla 'illaa maal ja'altahu sahlan wa 'Anta taj'alul-hazna 'ithaa shi'ta sahlan.

O Allah, there is no ease other than what You make easy. If You please You ease sorrow.

Reference:

Ibn Hibban in his Sahih (no. 2427), and Ibn As- Sunni (no. 351). Al-Hafidh (Ibn Hajar) said that this Hadith is authentic. It was also declared authentic by 'Abdul-Qadir Al-Arna'ut in his checking of An-Nawawi's Kitabul-Athkarp. p106