Membaca surat al kahfi: sakinah (ketenangan) yang turun saat Al Qur`an dibaca atau as sakinah itu memang turun untuk Al Qur`an
Imam Ahmad : 17851حَدَّثَنَا يَحْيَى بْنُ آدَمَ حَدَّثَنَا زُهَيْرٌ عَنْ أَبِي إِسْحَاقَ عَنِ الْبَرَاءِ بْنِ عَازِبٍ قَالَ كَانَ رَجُلٌ يَقْرَأُ فِي دَارِهِ سُورَةَ الْكَهْفِ وَإِلَى جَانِبِهِ حِصَانٌ لَهُ مَرْبُوطٌ بِشَطَنَيْنِ حَتَّى غَشِيَتْهُ سَحَابَةٌ فَجَعَلَتْ تَدْنُو وَتَدْنُو حَتَّى جَعَلَ فَرَسُهُ يَنْفِرُ مِنْهَا قَالَ الرَّجُلُ فَعَجِبْتُ لِذَلِكَ فَلَمَّا أَصْبَحَ أَتَى النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَذَكَرَ ذَلِكَ لَهُ وَقَصَّ عَلَيْهِ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تِلْكَ السَّكِينَةُ تَنَزَّلَتْ لِلْقُرْآنِ
Narrated to us [Yahya bin Adam] Narrated to us [Zuhair] from [Abu Ishaq] from [Al Baraa` bin 'Azib] he said: A man was reciting Surah Al-Kahf in his house while beside him was his horse tied with two ropes. (The man continued reciting) until a light cloud covered him, coming closer and closer until his horse shied away from it. In the morning, he came to the Prophet Peace be upon him and mentioned that. The Prophet Peace be upon him said: "That was As-Sakinah (tranquility/divine presence) which descended for (the recitation of) the Qur'an.