Quraysh is the 106th surah — four verses revealed in Mecca, addressed to the Prophet's own tribe, the custodians of the Kaaba.1
What it is about
The surah names a blessing the Quraysh enjoyed above other Arabs: safe passage for their trade. "For the accustoming of the Quraysh, their accustomed security in the caravan of winter and summer" — they sent trading journeys north in summer and south in winter, protected by their standing as keepers of the sanctuary. The surah draws the conclusion: "let them worship the Lord of this House, who has fed them, [saving them] from hunger and made them safe, [saving them] from fear." The gift obliges gratitude, and gratitude means worship.
Why it matters
Read together with Al-Fil, the two surahs form a single argument: God defended the Kaaba from the army of the elephant, and God keeps the Quraysh fed and safe — so the tribe should serve Him, not the idols they had placed in His House. To read Quraysh in Arabic with translations and recitation, open it on Quran.com.