Surah Al-Baqarah, ayah 45

وَٱسۡتَعِينُواْ بِٱلصَّبۡرِ وَٱلصَّلَوٰةِۚ وَإِنَّهَا لَكَبِيرَةٌ إِلَّا عَلَى ٱلۡخَٰشِعِينَ ٤٥

Wasta'īnū bis-sabri was-salawāti wa innahā lakabīratun illā 'alal-khāshi'īn

And seek help through patience and prayer; and indeed, it is difficult except for the humbly submissive [to Allāh]