[Machine] The Messenger of Allah ﷺ used to start his prayer with "Bismillah al-Rahman al-Rahim" (In the name of Allah, the Most Gracious, the Most Merciful) [Surah Al-Fatiha 1]. In the narration of Al-Zahid, it is mentioned that he recited it and added that Abdullah ibn Umar used to also recite "Bismillah al-Rahman al-Rahim" in the opening of the prayer, both in the beginning of Surah Al-Fatiha and the following surah. And the correct opinion is that it should be stopped at that.
أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا افْتَتَحَ الصَّلَاةَ يَبْدَأُ بِ {بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ} [الفاتحة 1] وَفِي رِوَايَةِ الزَّاهِدِ يَقْرَأُ وَزَادَ فِي رِوَايَتِهِ وَإِنَّ عَبْدَ اللهِ بْنَ عُمَرَ كَانَ إِذَا افْتَتَحَ الصَّلَاةَ يَقْرَأُ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ فِي أُمِّ الْكِتَابِ وَفِي السُّورَةِ الَّتِي تَلِيهَا وَالصَّوَابُ مَوْقُوفٌ كَذَلِكَ