Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Between the adhan and the iqamah there is a prayer, for whoever wishes." He said it three times.
Hayyan bin Ubaydullah narrated it from Abdullah bin Buraydah and erred in its chain, and he brought an addition in which no one corroborated him; the narration of Husayn al-Mu'allim contains what invalidates it and testifies to his error in it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4490