I said to Ibn Umar, "I see that you do not touch any of the corners except these two Yemeni corners."He replied, "I never saw the Messenger of Allah ﷺ touch any corners except these two." Abridged.
أخبرنا محمد بن العلاء قال أنبأنا ابن إدريس عن عبيد الله وابن جريج ومالك عن المقبري
قلت لابن عمر رأيتك لا تستلم من الأركان إلا هذين الركنين اليمانيين قال لم أر رسول الله ﷺ يستلم إلا هذين الركنين مختصر
Bukhari narrated it in the book of wudu, chapter on washing the feet while wearing sandals, and that one does not wipe over the sandals, hadith no. 166, and Muslim, hadith no. 1187, from the hadith of Malik through the same chain, as previously mentioned, hadith no. 117, and it is found in Al-Kubra, hadith no. 3931.