115 - وَقَالَ اَلصَّادِقُ عَلَيْهِ اَلسَّلاَمُ: «لَمَّا دَخَلَ اَلنَّاسُ فِي اَلدِّينِ أَفْوَاجاً أَتَتْهُمُ اَلْأَزْدُ أَرَقَّهَا قُلُوباً وَ أَعْذَبَهَا أَفْوَاهاً فَقِيلَ يَا رَسُولَ اَللَّهِ ، هَذَا أَرَقُّهَا قُلُوباً عَرَفْنَاهُ فَلِمَ صَارَتْ أَعْذَبَهَا أَفْوَاهاً فَقَالَ «إِنَّهَا كَانَتْ تَسْتَاكُ فِي اَلْجَاهِلِيَّةِ.
Hadith.115 - Imam Jafar ibn Muhammad Al-Sadiq 
said :
"When people entered the religion in large numbers, the tribe of Azd came among them with the softest hearts and the sweetest mouths.
It was asked: 'O’ Messenger of Allah ﷺ, we understand why they have the softest hearts, but why do they have the sweetest mouths?'
He ﷺ said: 'They used to use siwak (toothstick) even in the pre-Islamic period.'"
