The following verses are the standard collection known as Ayat-e-Sakina: Surah Al-Baqarah (2:248)
This verse is considered a powerful expression of divine guidance and support, bringing peace and reassurance to the hearts of believers.
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: Allah being pleased with the believers under the tree and sending tranquility upon them. Surah Al-Fath (48:26)
States that Allah sends tranquility into the hearts of believers to increase their faith.