Mishkat al-Masabih 10 The Rites of Pilgrimage كتاب المناسك 99

وَعَنِ ابْنِ عُمَرَ قَالَ: جَمَعَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْمَغْرِبَ وَالْعِشَاءَ بِجَمْعٍ كُلَّ وَاحِدَةٍ مِنْهُمَا بِإِقَامَةٍ وَلَمْ يُسَبِّحْ بَيْنَهُمَا وَلَا عَلَى إِثْرِ كُلِّ وَاحِدَةٍ مِنْهُمَا. رَوَاهُ الْبُخَارِيُّ

Ibn ‘Umar said that the Prophet combined the sunset and the evening prayer, each with an iqama , but did not say ‘Glory be to God’ between them, or at the end of each one of them. Bukhari transmitted it.