The conjunction in وَإِيَّاكَ نَسْتَعِينُ connects worship with seeking help. The same rules for iyyāka apply here.
In نَسْتَعِينُ, a madd yāʾ precedes final nūn with ḍammah. At the verse ending, stopping makes the nūn sākin and yields madd ʿāriḍ li-s-sukūn. Compare connected and paused delivery.
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Wa iyyāka nastaʿīn: linking and pause
Al-Fātiḥah: Integrated Tajwīd, Madd and Pausing Practice
The conjunction in وَإِيَّاكَ نَسْتَعِينُ connects worship with seeking help. The same rules for iyyāka apply here.
In نَسْتَعِينُ, a madd yāʾ precedes final nūn with ḍammah. At the verse ending, stopping makes the nūn sākin and yields madd ʿāriḍ li-s-sukūn. Compare connected and paused delivery.