Translation:

46. And obey Allah and His apostle; and fall into no disputes lest ye lose heart and your power depart; and be patient and persevering: for Allah is with those who patiently persevere.

Notes (Tafseer)

1215. A fine description of the Muslim virtues which make for success and whose loss brings about humiliation and failure. "Power": literally, "wind",-the favourable wind for a sailing ship.