Quraish
لِإِيلَٰفِ قُرَيۡشٍ
Because of the familiarity of the Quraish,
إِۦلَٰفِهِمۡ رِحۡلَةَ ٱلشِّتَآءِ وَٱلصَّيۡفِ
that is, their familiarity with the trips of winter and summer,
فَلۡيَعۡبُدُواْ رَبَّ هَٰذَا ٱلۡبَيۡتِ
they must worship the Lord of this House,
ٱلَّذِيٓ أَطۡعَمَهُم مِّن جُوعٖ وَءَامَنَهُم مِّنۡ خَوۡفِۭ
who gave them food against hunger, and gave them security against fear.