וְקוֹיֵ֤ יְהוָה֙ יַחֲלִ֣יפוּ כֹ֔חַ יַעֲל֥וּ אֵ֖בֶר כַּנְּשָׁרִ֑ים יָר֙וּצוּ֙ וְלֹ֣א יִיגָ֔עוּ יֵלְכ֖וּ וְלֹ֥א יִיעָֽפוּ׃ (פ)
但仰望永恆者的人必重新得力；他們必如鷹展翅上騰；他們奔跑卻不困倦，行走卻不疲乏。
Sefer HaChinukh
And regarding if they are practiced at this time or not, many of the great commentators have already disagreed about this. And what comes out of the discussion in the Chapter [entitled] HaZroa with the good commentary is that they are practiced today. And that is likewise the opinion of Rabbenu Alfasi, may his memory be blessed, and Ramban, may this memory be blessed. But we do not have the power over the butchers now to force them to give them to them. “And those who trust in the Lord shall renew their strength.”