NASAI-KUBRA 7682:
from Jābir b. ʿAbdullāh —
[Machine] "The Messenger of Allah ﷺ used to teach us to seek guidance (through istikhara) in all matters, just as he used to teach us a Surah from the Quran." The hadith is narrated in full length.
الكبرى للنسائي ٧٦٨٢:
عن جابر بن عبد الله —
«كَانَ رَسُولُ اللهِ ﷺ يُعَلِّمُنَا الِاسْتِخَارَةَ فِي الْأُمُورِ كُلِّهَا كَمَا يُعَلِّمُنَا السُّورَةَ مِنَ الْقُرْآنِ» وَسَاقَ الْحَدِيثَ بِطُولِهِ