وَقَالَ عَلَيْهِ اَلسَّلاَمُ: فِي قَوْلِ اَللَّهِ تَعَالَى « وَ أَعِدُّوا لَهُمْ مَا اِسْتَطَعْتُمْ مِنْ قُوَّةٍ » قَالَ «مِنْهُ اَلْخِضَابُ بِالسَّوَادِ وَ إِنَّ رَجُلاً دَخَلَ عَلَى رَسُولِ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ وَ قَدْ صَفَّرَ لِحْيَتَهُ فَقَالَ لَهُ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ «مَا أَحْسَنَ هَذَا» ثُمَّ دَخَلَ عَلَيْهِ بَعْدَ هَذَا وَ قَدْ أَقْنَى بِالْحِنَّاءِ فَتَبَسَّمَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ وَقَالَ «هَذَا أَحْسَنُ مِنْ ذَاكَ» ثُمَّ دَخَلَ عَلَيْهِ بَعْدَ ذَلِكَ وَ قَدْ خَضَبَ بِالسَّوَادِ فَضَحِكَ إِلَيْهِ فَقَالَ «هَذَا أَحْسَنُ مِنْ ذَاكَ وَ ذَاكَ».
Imam Jafar ibn Muhammad Al-Sadiq (a.s) commented on the verse of Allah (swt), the Exalted, "And prepare for them whatever force you can muster" (Surah Al-Anfal; 8:60). Imam (a.s) said: "Among it is dyeing with black”. (From Imam Jafar ibn Muhammad Al-Sadiq (a.s) ); A man entered upon the Messenger of Allah (saws) with his beard dyed yellow (light color), and the Messenger of Allah (saws) said to him, "How good this is." Then he entered again after that with his beard dyed with henna (reddish color), and the Messenger of Allah (saws) smiled and said: "This is better than the previous." Then he entered again after having dyed it black, and the Prophet smiled and said: "This is better than both of the previous”.