The losers, according to these verses, are those who lose themselves and their families on the Day of Resurrection, the disbelievers, the associators and those who obey them, and those who deny Allah’s signs, the meeting with Him and His prophets. Added to them are those who take Satan as an ally, worship Allah with wavering faith or feel secure from His plan.
Verses gathered from a topical index of the Quran, in Mushaf order; every verse is quoted in full.
And when regret overcame them and they saw that they had gone astray, they said, "If our Lord does not have mercy upon us and forgive us, we will surely be among the losers."