Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasimthat al-Qasim ibn Muhammad had done the same as Ibn Umar. (RU)
App reference (RU): Book 7, Hadith 33 (RU)
USC-MSA web (English) reference: Book 7, Hadith 33 (RU)
Arabic reference (RU): Book 7, Hadith 287 (RU)