"Bastatan" with Sad and Sin — Al-Araf 69 and Al-Shuara 45

The two positions:

1. Al-Araf (69): "And He increased you in bodily stature (bastatan with sad)" — the mushaf writes it with sad
2. Al-Shuara (45): "And He increased you in bodily stature (bastatan with sin)" — the mushaf writes it with sin

Reason for the spelling difference:
The Uthmani mushaf wrote the first with sad and the second with sin — reflecting the dialect differences in reading that the writing committee documented.

Reader preferences:

• Hamza, Al-Kisai, and Khalaf: read Al-Araf with sin despite the written sad — following the narration
• Remaining readers: follow the written form — sad in Al-Araf and sin in Al-Shuara
• Shuaba (from Asim): reads Al-Araf with sad following the written form

The derived principle:
Narration takes precedence over written form when they conflict — the mushaf was written without dots or diacritics, so the oral mutawatir narration determines the correct pronunciation. Ibn Al-Jazari: "Reading is a followed Sunna — it takes precedence over script and orthography."