تخَیَّر لِنَفسِکَ مِنَ الدُّعاءِ ما أحبَبتَ واجْتَهِد ، فإنَّهُ (یَومَ عَرَفَة) یَومُ دُعاءٍ و مَسألَةٍ.

Pray for whatever you want and strive in supplication, for “Arafah Day” is a day for supplication and seeking.

Tahdhib al-Ahkam, v. 5, p. 182