Jabir b. 'Abdullah reported that Allah's Apostle ﷺ and his Companions did not observe Sa'i between al-Safa' and al-Marwa but only one Sa'i.  

أَنَّهُ سَمِعَ جَابِرَ بْنَ عَبْدِ اللَّهِ يَقُولُ لَمْ يَطُفِ النَّبِيُّ ﷺ وَلاَ أَصْحَابُهُ بَيْنَ الصَّفَا وَالْمَرْوَةِ إِلاَّ طَوَافًا وَاحِدًا  

But one Tawaf and that was the first Tawaf.  

وَقَالَ إِلاَّ طَوَافًا وَاحِدًا طَوَافَهُ الأَوَّلَ