Reward of reciting Laa ilaaha illallaah loudly
Thawāb al-Aʿmāl wa ʿiqāb al-Aʿmāl|Volume 1|Book 2|Chapter 5
وَ بِهَذَا الْإِسْنَادِ عَنِ الْحُسَیْنِ بْنِ سَیْفٍ عَنْ أَخِیهِ عَلِیٍّ عَنْ أَبِیهِ عَنِ الْحَسَنِ بْنِ الصَّبَّاحِ قَالَ حَدَّثَنِی أَنَسٌ عَنِ النَّبِیِّ ص قَالَ: کُلُّ جَبَّارٍ عَنِیدٍ مَنْ أَبَی أَنْ یَقُولَ لَا إِلَهَ إِلَّا اللَّهُ.
3. And from the previous chain from al-Hussain b. Sayf from his brother Ali from his father from al-Hassan b. al-Sabah who said it was narrated to me by Anas from The Prophet صلى الله عليه وعلى آله وسلم who said: “One who does not recite Laa ilaaha illallaah is proud and arrogant.”