Question

Their accustomed security [in] the caravan of winter and summer[1997] - إِۦلَٰفِهِمْ رِحْلَةَ ٱلشِّتَآءِ وَٱلصَّيْفِ 2

Accepted Answer

[1997] i.e., the trading caravans that traveled south in winter and north in summer. al-Quraish Part 30

Translation	Their accustomed security [in] the caravan of winter and summer[1997] -
Footnote	[1997] i.e., the trading caravans that traveled south in winter and north in summer.
Ayah	إِۦلَٰفِهِمْ رِحْلَةَ ٱلشِّتَآءِ وَٱلصَّيْفِ
Sorh	al-Quraish
AyahN	2
Part	Part 30

Winter Accustomed Security Caravan Summer[1997 I.E Trading Traveled