In بِالصَّبْرِ, the article assimilates into ṣād; keep ṣād emphatic. Within the word, bāʾ has sukūn. Since bāʾ belongs to «قُطْبُ جَدٍّ», it requires qalqalah.
Qalqalah is a controlled release, not the addition of a fresh fatḥah or ḍammah. Practise «ṣab», then the full word «bi-ṣ-ṣabr», keeping the bāʾ’s release brief.
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Qalqalah of sākin bāʾ in bi-ṣ-ṣabr
Al-ʿAṣr and At-Takāthur: Applied Ghunnah, Madd, Lām and Waqf
In بِالصَّبْرِ, the article assimilates into ṣād; keep ṣād emphatic. Within the word, bāʾ has sukūn. Since bāʾ belongs to «قُطْبُ جَدٍّ», it requires qalqalah.
Qalqalah is a controlled release, not the addition of a fresh fatḥah or ḍammah. Practise «ṣab», then the full word «bi-ṣ-ṣabr», keeping the bāʾ’s release brief.