Ibn 'Abbas (RAA) narrated, ‘One day I was riding behind the Prophet (ﷺ) when he said, “O lad, be mindful of Allah and He will protect you. Be mindful of Allah and you shall find Him with you. When you ask (for anything), ask it from Allah, and if you seek help, seek help from Allah.” Related by At-Tirmidhi who verified it as Hasan and Sahih.

وَعَنِ اِبْنِ عَبَّاسٍ قَالَ: كُنْتُ خَلْفَ اَلنَّبِيِّ ‏- صلى الله عليه وسلم ‏-يَوْمًا, فَقَالَ: { يَا غُلَامُ! اِحْفَظِ اَللَّهَ يَحْفَظْكَ, اِحْفَظِ اَللَّهَ تَجِدْهُ تُجَاهَكَ, وَإِذَا سَأَلْتَ فَاسْأَلْ اَللَّهَ, وَإِذَا اِسْتَعَنْتَ فَاسْتَعِنْ بِاَللَّهِ } رَوَاهُ اَلتِّرْمِذِيُّ, وَقَالَ: حَسَنٌ صَحِيحٌ.‏ [1]‏ .‏