Sunan an Nasai
660
Sahih+2

It was narrated from Salim, from his father, that the Prophet (S.A.W) joined them (Maghrib and 'Isha') in Al-Muzdalifah, and he prayed each of them with an Iqamah, and he did not offer any voluntary prayer before or after either of them

SahihAbu Ghuddah
SahihAl-Albani