A beautiful du'a for firmness in faith, taught by our beloved Prophet ﷺ
SubhanAllah, Anas ibn Malik (may Allah be pleased with him) shared that the Messenger of Allah ﷺ used to say this du'a a lot: "يَا مُقَلِّبَ الْقُلُوبِ ثَبِّتْ قَلْبِي عَلَى دِينِكَ" “Yaa muqallibal quloob, thabbit qalbee ‘alaa deenik” O Turner of hearts, make my heart firm upon Your Deen. It’s such a heartfelt supplication, right? May Allah keep us all steadfast. [Tirmidhi]