وَ رُوِيَ عَنِ اَلصَّادِقِ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: «تَرَوْنَ هَذَا اَلْجَبَلَ ثَافِلاً إِنَّ يَزِيدَ بْنَ مُعَاوِيَةَ لَمَّا رَجَعَ مِنْ حَجِّهِ مُرْتَحِلاً إِلَى اَلشَّامِ أَنْشَأَ يَقُولُ: إِذَا تَرَكْنَا ثَافِلاً يَمِيناً فَلَنْ نَعُودَ بَعْدَهُ سِنِينَا لِلْحَجِّ وَ اَلْعُمْرَةِ مَا بَقِينَا فَأَمَاتَهُ اَللَّهُ عَزَّ وَ جَلَّ قَبْلَ أَجَلِهِ ».
It is narrated from Imam Jafar ibn Muhammad Al-Sadiq (a.s) that he said: "Do you see this mountain, Thafil? When Yazid ibn Muawiyah returned from his Hajj and set out toward Sham, he composed these verses: When we leave Thafil to our right, We shall never return for years to come, Neither for Hajj nor Umrah while we live. Allah (swt), Mighty and Majestic, caused him to die before his appointed time."