Peace everyone. As a quranist i believe that Quran contains all the islamic details. Allah says in the Quran to do salat, so i was wondering if the word salat was there before Quran?
The short answer is Yes. This is explicitly mentioned in Quran, in several ayahs. Consider following ones as some instance:
1- 14:37 Prophet Abraham (Ibrahim pbuh)
رَّبَّنَا إِنِّي أَسْكَنتُ مِن ذُرِّيَّتِي بِوَادٍ غَيْرِ ذِي زَرْعٍ عِندَ بَيْتِكَ الْمُحَرَّمِ رَبَّنَا لِيُقِيمُوا الصَّلَاةَ فَاجْعَلْ أَفْئِدَةً مِّنَ النَّاسِ تَهْوِي إِلَيْهِمْ وَارْزُقْهُم مِّنَ الثَّمَرَاتِ لَعَلَّهُمْ يَشْكُرُونَ
Our Lord, I have settled some of my descendants in an uncultivated valley near Your sacred House, our Lord, that they may establish prayer. So make hearts among the people incline toward them and provide for them from the fruits that they might be grateful.
2- 14:40 Again Prophet Abraham (Ibrahim pbuh):
رَبِّ اجْعَلْنِي مُقِيمَ الصَّلَاةِ وَمِن ذُرِّيَّتِي ۚ رَبَّنَا وَتَقَبَّلْ دُعَاءِ
My Lord, make me an establisher of prayer, and [many] from my descendants. Our Lord, and accept my supplication.
3- 19:31 Saint Maryam (Mary):
وَجَعَلَنِي مُبَارَكًا أَيْنَ مَا كُنتُ وَأَوْصَانِي بِالصَّلَاةِ وَالزَّكَاةِ مَا دُمْتُ حَيًّا
And He has made me blessed wherever I am and has enjoined upon me prayer and zakah as long as I remain alive