قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم “أَفَلاَ أُخْبِرُكُمْ بِمَا يُذْهِبُ وَحَرَ الصَّدْرِ” قَالُوا بَلَى . قَالَ صِيَامُ ثَلاَثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ
سنن النسائي ٢٣٨٦ صحيح
The messenger of Allah (ﷺ) may Allah send peace and blessings upon him said: “Shall I not inform you of what removes the impurity from the heart” they said “Yes” he said “fasting three days every month”
Sunan An Nasa’i 2386 Saheeh
:قال السِّنْدِيِّ
( بِمَا يُذْهِبُ وَحَرَ الصَّدْرِ )
“قِيلَ غِشُّهُ وَوَسَاوِسُهُ وَقِيلَ حِقْده وَقِيلَ مَا يَحْصُلُ فِي الْقَلْبِ مِنْ الْكُدُورَاتِ وَالْقَسْوَة”
شرح سنن النسائي – (ج 3 / ص 444)
As Sindhi said:
“what removes the impurity from the heart”
“It is said: it’s deceitfulness, and its whispers, and it is said: hatred, and it is said what comes in the heart from troubles and hardness.”
Explanation of sunan Nasa’i