It wasnarrated from 'Ubadah bin Samit that the Prophet (ﷺ) said:
"Therewill be leaders who will be distracted by matters and they willdelaythe prayer until after its proper time. So make your prayer withthemvoluntary." (RU)
English reference (RU): Vol. 1, Book 5, Hadith 1257 (RU)
Arabic reference (RU): Book 5, Hadith 1315 (RU)