The Prophet ﷺ said, "Between every two calls to prayer there is a prayer for whoever wishes."
حدثنا هناد حدثنا وكيع عن كهمس بن الحسن عن عبد الله بن بريدة
عن النبي ﷺ قال بين كل أذانين صلاة لمن شاء
Agreed upon by Bukhari and Muslim. Muslim narrated it in Salat al-Musafirin, chapter "Between every two calls to prayer there is a prayer," hadith 838, from the narration of Waki, and Bukhari, hadith 627, from the narration of Kahmas with the same wording.There is also a narration on this subject from Abdullah bin Zubayr [Ibn Hibban, hadith 615, and Daraqutni 1/99].