Abu Salama reported,

He asked Ayesha about the two units of prayer that the Messenger of Allah ﷺ used to pray after the afternoon prayer.She replied, "He used to pray them before the afternoon prayer, but he was once occupied and missed them, or he forgot them, so he prayed them after the afternoon prayer. Then he kept them as a regular practice, for whenever he performed a prayer, he would maintain it consistently."By this she meant that he would continue performing it regularly.

Azami 2507

Sahih

عن أبي سلمة قال

إنه سأل عائشة عن السجدتين اللتين كان رسول الله ﷺ يصليهما بعد العصر. فقالت: كان يصليهما قبل العصر، ثم إنه شغل عنهما أو نسيهما فصلاهما بعد العصر، ثم أثبتهما. وكان إذا صلى صلاة أثبتها. تعني: داوم عليها.

الأعظمي 2507صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Forbidden times for prayer
Section
Prophet ﷺ praying two rakahs after Asr
Numbering
Jami al-Kamil 2507 (2nd edition)
Azami 2507