It wasnarrated that Ibn 'Umar said:
"It was said to the Prophet(ﷺ):'The left side of the mosque has been abandoned. The Prophet(ﷺ)said: "Whoever frequents the left side of the mosque, two Kifl*ofreward will be recorded for him." (JA)
English reference (JA): Vol. 1, Book 5, Hadith 1007 (JA)
Arabic reference (JA): Book 5, Hadith 1060 (JA)