“ For forty years, the Adhan was never called but Sa`id bin al-Musayyib {May Allah have mercy on him}was in the Masjid before it was called.“
Imam Sufyan bin `Uyaynah {May Allah have mercy on him} said:
“Honoring the prayer includes coming before the Iqamah is recited.”
{Tabaqat al~Hanabilah, Volume1 pg.141, Hilyatul’ Awliyah, Volume 2 pg.163, Sifat as- Safwah, Volume 2 pg. 80 & 235}