The Messenger of Allah ﷺ used to observe prayers like your prayers, but he would delay the prayer after nightfall to a little after the time you observed it, and he would shorten the prayer.

كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي الصَّلَوَاتِ نَحْوًا مِنْ صَلاَتِكُمْ وَكَانَ يُؤَخِّرُ الْعَتَمَةَ بَعْدَ صَلاَتِكُمْ شَيْئًا وَكَانَ يُخِفُّ الصَّلاَةَ وَفِي رِوَايَةِ أَبِي كَامِلٍ يُخَفِّفُ

[AI] The Messenger of Allah ﷺ used to lead us in the obligatory prayer, without prolonging it or rushing through it. He would not make it too long or too short. He would delay the Isha prayer.

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي بِنَا الصَّلَاةَ الْمَكْتُوبَةَ وَلَا يُطِيلُ فِيهَا وَلَا يُخِفُّ وَسَطًا مِنْ ذَلِكَ وَكَانَ يُؤَخِّرُ الْعَتَمَةَ

[AI] The Messenger of Allah ﷺ used to pray in a similar way to your prayers, and he would delay the 'Isha prayer after your prayer for a while, and he would shorten the prayer.

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي الصَّلَوَاتِ نَحْوًا مِنْ صَلَاتِكُمْ وَكَانَ يُؤَخِّرُ الْعَتَمَةَ بَعْدَ صَلَاتِكُمْ شَيْئًا وَكَانَ يُخَفِّفُ الصَّلَاةَ

[AI] "The Messenger of Allah ﷺ used to perform a slightly shorter prayer than your prayers. He would recite Surah Al-Waqi'ah or similar Surahs in the Fajr prayer."

«كَانَ رَسُولُ اللَّهِ ﷺ يُصَلِّي نَحْوًا مِنْ صَلَاتِكُمْ كَانَ يُخَفِّفُ الصَّلَاةَ وَكَانَ يَقْرَأُ فِي صَلَاةِ الْفَجْرِ بِالْوَاقِعَةِ وَنَحْوِهَا مِنَ السُّوَرِ»

[AI] "The Messenger of Allah ﷺ used to perform the prayers in a similar manner to your prayers, but he would delay the darkness after your prayers for a while, and he used to perform the prayers with briskness."

«كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي الصَّلَوَاتِ نَحْوًا مِنْ صَلَاتِكُمْ وَيُؤَخِّرُ الْعَتَمَةَ بَعْدَ صَلَاتِكُمْ شَيْئًا وَكَانَ يَخِفُّ الصَّلَاةَ»

"عَنْ جَابِر قَالَ: كَانَ النَّبِىُّ ﷺ يُصَلِّى بِنَا الْمَكْتُوبَةَ صَلاَةً لا نُطِيلُ فِيهَا، وَلاَ نُخَفِّفُ، وَسَطًا مِنْ ذَلِكَ، وَكَانَ يُؤَخِّرُ العَتْمَةَ".