Surah Quraysh, Verse 2

إِۦلَٰفِهِمۡ رِحۡلَةَ ٱلشِّتَآءِ وَٱلصَّيۡفِ٢

īlāfihim riḥ'lata l-shitāi wal-ṣayfi

Their accustomed security [in] the caravan of winter and summer -