Ali bin Hujr bin Iyas bin Maqatil علي بن حجر بن إياس بن مقاتل · The Book of Water

"The Prophet (ﷺ) used to say: 'Allahummaghsil khatayaya bi-ma'ith-thalj wal-barad was naqqi qalbi min al-khataya kama naqayta ath-thawb al-abyad min ad-danas (O Allah, wash away my sins with the water of snow and hail, and cleanse my heart of snow and hail, and cleanse my heart of sin as a white garment is cleansed of filth).'"

"The Messenger of Allah (ﷺ) would say: 'Allahummaghsil khatayaya bi-ma'ith-thalj wal-barad (O Allah, wash away my sins with the water of snow and hail).'" That is at the beginning of Salah as is clear from the remainder of the narration which preceded under No. 60.