Hadith on Dhikr: If good deeds are too difficult, remember Allah often

Ibn Abbas reported: The Messenger of Allah, peace and blessings be upon him, said, “Whoever is too weak among you to pray at night that he might fall down, too miserly with his wealth that he might spend it, or too fearful of the enemy that he might fight them, then let him remember Allah often.

Source: Musnad al-Bazzār 4904

Grade: Sahih li ghayrihi (authentic due to external evidence) according to Al-Albani

عَنِ ابْنِ عَبَّاسٍ قَالَ قَالَ رَسُول اللهِ صَلَّى اللَّهُ عَلَيه وَسَلَّم مَنْ عَجَزَ مِنْكُمْ عَنِ اللَّيْلِ أَنْ يُكَابِدَهُ وَبَخِلَ بِالْمَالِ أَنْ يُنْفِقَهُ وَجَبُنَ عَنِ الْعَدُوِّ أَنْ يُجَاهِدَهُ فَلْيُكْثِرْ ذِكْرَ اللَّهِ

4904 مسند البزار

1496 المحدث الألباني خلاصة حكم المحدث صحيح لغيره في صحيح الترغيب