"The Messenger of Allah (ﷺ) used to pray 'Asr when the sun was still high and bright, and a person could go to Al-'Awali when the sun was still high."

Al-'Awali is the southern most district of Al-Madinah, and it is very big. Its nearest limit is at a distance of about two miles from the center of Al-Madinah. While its furthest limit is about eight miles.
Sunan an-Nasa'i Book 6, Hadith 14
← Previous Hadith "The Messenger of Allah (ﷺ) used to pray 'Asr, then a person could go to Quba'." One of them said: "And he would come to them when they were prayed." The other said: "And the sub was still high."

Both Az-Zuhri and Ishaq bin 'Abdullah narrated it from Anas, so the reference is about them.

Sunan an-Nasa'i Book 6, Hadith 13 Next Hadith → "The Messenger of Allah (ﷺ) used to lead us in 'Asr prayer when the sun was still bright and high."

Sunan an-Nasa'i Book 6, Hadith 15