'You forgot a Rak'ah of the prayer!' So he came back into the Masjid and told Bilal to call the Iqamah for prayer, then he led the people in praying one Rak'ah. I told the people about that and they said to me: 'Do you know who that man was?' I said: 'No, not unless I see him.'. Then he passed by me and I said: 'This is he.' They said: 'This is Talha bin 'Ubaidullah.'"  

أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى يَوْمًا فَسَلَّمَ وَقَدْ بَقِيَتْ مِنَ الصَّلاَةِ رَكْعَةٌ فَأَدْرَكَهُ رَجُلٌ فَقَالَ نَسِيتَ مِنَ الصَّلاَةِ رَكْعَةً فَدَخَلَ الْمَسْجِدَ وَأَمَرَ بِلاَلاً فَأَقَامَ الصَّلاَةَ فَصَلَّى لِلنَّاسِ رَكْعَةً فَأَخْبَرْتُ بِذَلِكَ النَّاسَ فَقَالُوا لِي أَتَعْرِفُ الرَّجُلَ قُلْتُ لاَ إِلاَّ أَنْ أَرَاهُ فَمَرَّ بِي فَقُلْتُ هَذَا هُوَ قَالُوا هَذَا طَلْحَةُ بْنُ عُبَيْدِ اللَّهِ