Hadith 627 - Call to Prayers (Adhaan) - Sahih Al-Bukhari - صحيح البخاري - Collection of Actions, Sayings and Teachings of Prophet Muhammad (صلى الله عليه و سلم) - Kutub as-Sittah

10. Call to Prayers (Adhaan) - كتاب الأذان

16) Chapter: Between every two calls (Adhan and Iqama) there is a Salat (prayer) (that is optional) for the one who wants to offer it.

Narrated `Abdullah bin Mughaffal:

The prophet said, "There is a prayer between the two Adhans (Adhan and Iqama), there is a prayer between the two Adhans." And then while saying it the third time he added, "For the one who wants to (pray).

Reference: 627
English reference: Vol. 1, Book 11, Hadith 600
In-book reference: Book 10, Hadith 24
Grade: Sahih
Read this hadith from Darussalam Collection

16) باب بَيْنَ كُلِّ أَذَانَيْنِ صَلاَةٌ لِمَنْ شَاءَ

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يَزِيدَ، قَالَ حَدَّثَنَا كَهْمَسُ بْنُ الْحَسَنِ، عَنْ عَبْدِ اللَّهِ بْنِ بُرَيْدَةَ، عَنْ عَبْدِ اللَّهِ بْنِ مُغَفَّلٍ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏‏‏.‏ "‏ بَيْنَ كُلِّ أَذَانَيْنِ صَلاَةٌ بَيْنَ كُلِّ أَذَانَيْنِ صَلاَةٌ ـ ثُمَّ قَالَ فِي الثَّالِثَةِ ـ لِمَنْ شَاءَ ‏"