"صَلُّوا قَبْلَ المَغْرب رَكعَتَين، صلوا قَبْلَ المَغْرب رَكْعَتين لمَن شَاءَ".
The Messenger of Allah ﷺ said: Pray two rak'ahs before the Maghrib prayer. He then said (again): Pray two rak'ahs before the Maghrib prayer, it applies to those who wish to do so. That was because he feared that the people might treat it as sunnah.
قَالَ رَسُولُ اللَّهِ ﷺ صَلُّوا قَبْلَ الْمَغْرِبِ رَكْعَتَيْنِ ثُمَّ قَالَ صَلُّوا قَبْلَ الْمَغْرِبِ رَكْعَتَيْنِ لِمَنْ شَاءَ خَشْيَةَ أَنْ يَتَّخِذَهَا النَّاسُ سُنَّةً
The Messenger of Allah ﷺ said: Pray two rak'ahs before the Maghrib prayer. He then said (again): Pray two rak'ahs before the Maghrib prayer, it applies to those who wish to do so. That was because he feared that the people might treat it as sunnah. (Using translation from Abū Dāʾūd 1281)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ صَلُّوا قَبْلَ الْمَغْرِبِ رَكْعَتَيْنِ ثُمَّ قَالَ صَلُّوا قَبْلَ الْمَغْرِبِ رَكْعَتَيْنِ ثُمَّ قَالَ عِنْدَ الثَّالِثَةِ لِمَنْ شَاءَ كَرَاهِيَةَ أَنْ يَتَّخِذَهَا النَّاسُ سُنَّةً