قَالَ أَبُو عَبْدِ اللَّهِ ( عليه السلام ) فِي الرَّجُلِ إِذَا أَدْرَكَ الْإِمَامَ وَ هُوَ رَاكِعٌ فَكَبَّرَ وَ هُوَ مُقِيمٌ صُلْبَهُ ثُمَّ رَكَعَ قَبْلَ أَنْ يَرْفَعَ الْإِمَامُ رَأْسَهُ فَقَدْ أَدْرَكَ .
Translation
Muhammad Bin Yahya, from Ahmad Bin Muhammad, from Ali Bin Al Numan, from Ibn Muskan, from Sulaymen Bin Khalid who said, ‘Abu Abdullah<sup>asws</sup> said: ‘Regarding the man when he comes across the Imam he has performed Rukū, so he should exclaim a <span class="iTxt">Takbīr</span> while he is straight of back, then go into <span class="iTxt">Rukū</span> before the Imam raises his head, so he would have achieved (the <span class="iTxt">Rak’at</span>)’.
Compiled by Shaykh Muhammad ibn Ya'qub al-Kulayni
Source
License: Free for educational and research use (Thaqalayn Data API)
Provided for research and educational purposes. Original source: Thaqalayn Project. Open License.