Sūrat az-Zalzalah (99:5–8)
بِأَنَّ رَبَّكَ أَوْحَىٰ لَهَا (5)
يَوْمَئِذٍ يَصْدُرُ النَّاسُ أَشْتَاتًا لِيُرَوْا أَعْمَالَهُمْ (6)
فَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ (7)
وَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ (8)
The last two verses form an excellent comparison: replacing khāʾ by shīn changes the rule governing tanwīn.
Try joining and pausing at different boundaries, then note which rule remains operative.
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Az-Zalzalah: verses 5–8
Al-Qāriʿah and Az-Zalzalah — Comparative Tajwīd Practice
Sūrat az-Zalzalah (99:5–8)
بِأَنَّ رَبَّكَ أَوْحَىٰ لَهَا (5)
يَوْمَئِذٍ يَصْدُرُ النَّاسُ أَشْتَاتًا لِيُرَوْا أَعْمَالَهُمْ (6)
فَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ (7)
وَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ (8)
The last two verses form an excellent comparison: replacing khāʾ by shīn changes the rule governing tanwīn.
Try joining and pausing at different boundaries, then note which rule remains operative.