Al-A'laa • BN-TAFSEER-IBN-E-KASEER
﴿ قَدْ أَفْلَحَ مَن تَزَكَّىٰ ﴾
“To happiness [in the life to come] will indeed attain he who attains to purity [in this world],”
Please check ayah 87:19 for complete tafsir.