'Umar (RAA) narrated, ‘When the Messenger of Allah (ﷺ) raised his hands in supplication, he did not lower them till he wiped his face with them.’ Related by At-Tirmidhi.

وَعَنْ عُمَرَ ‏- رضى الله عنه ‏- قَالَ: { كَانَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-إِذَا مَدَّ يَدَيْهِ فِي اَلدُّعَاءِ, لَمْ يَرُدَّهُمَا, حَتَّى يَمْسَحَ بِهِمَا وَجْهَهُ } أَخْرَجَهُ اَلتِّرْمِذِيُّ .‏ [1]‏ .‏