بُلُوغُ الْمَرَامِ
Bulugh al-Maram 516
The Book of Prayer
وَلِلدَّارَقُطْنِيِّ مِنْ مُرْسَلِ [1] أَبِي جَعْفَرٍ اَلْبَاقِرِ: وَحَوَّلَ رِدَاءَهُ؛ لِيَتَحَوَّلَ اَلْقَحْطُ [2] .
ad-Daraqutni reported from the Mursal Hadith of Abu Ja'far al-Baqir: "He (ﷺ) turned his cloak round, so that the drought may turn [from dry land to rained land).
Sunnah.com reference: Book 2, Hadith 447