[Machine] Speaking is prohibited in four occasions: during the two Eids (Eid al-Fitr and Eid al-Adha), during the prayer for rain (istisqa), and on Fridays. And this is established.
يُكْرَهُ الْكَلَامُ فِي أَرْبَعَةِ مَوَاطِنَ فِي الْعِيدَيْنِ وَالِاسْتِسْقَاءِ وَيَوْمِ الْجُمُعَةِ وَهَذَا مَوْقُوفٌ