With this hadith, he added, "When he recites, listen attentively." And he said regarding the tashahhud, after "I bear witness that there is no god but Allah," he added, "alone, with no partner."
حدثنا عاصم بن النضر حدثنا المعتمر قال سمعت أبي حدثنا قتادة عن أبي غلاب يحدثه
بهذا الحديث زاد فإذا قرأ فأنصتوا وقال في التشهد بعد أشهد أن لا إله إلا الله زاد وحده لا شريك له
No references are available.
Muslim also narrated it, no. 404, from the hadith of Sulayman Taymi with this chain, and it is a sahih hadith, but it has been abrogated by the hadith of Abu Hurairah mentioned earlier at no. 821.