Kitzur Shulchan Arukh 23:4קיצור שלחן ערוך כ״ג:ד׳
It is forbidden to hold the Seifer Torah with bare hands. Rather, you should hold it by means of the tallis or hold it by its poles. There are some who refrain from touching even the poles with bare hands, only with the tallis.
Megillah 32a:14מגילה ל״ב א:י״ד
Rabbi Parnakh said that Rabbi Yoḥanan said: Anyone who holds onto an uncovered Torah scroll, i.e., holds the parchment directly without anything intervening, will be punished by being buried uncovered. The Gemara asks: Can it enter your mind to say that he will actually be buried uncovered? Why should he be buried in such a disgraceful manner? Rather, say that he will be buried metaphorically uncovered, i.e., without the merit of having performed mitzvot.
Turei Zahav on Shulchan Arukh, Orach Chayim 147:1טורי זהב על שולחן ערוך אורח חיים קמ״ז:א׳
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Bach, Orach Chayim 147:1:1ב"ח, אורח חיים קמ״ז:א׳:א׳
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Pesachim 57a:9פסחים נ״ז א:ט׳
Apropos the critique of several prominent priests, the Gemara relates that the Sages taught: The people in the Temple courtyard all cried four cries, as they were in agreement over various issues (Pardes Rimonim). The first cry was: Leave here, sons of Eli, who defiled God’s Sanctuary (see I Samuel 2:22). Subsequently the priesthood was transferred to the house of Zadok. And an additional cry: Leave here, Yissakhar of Kfar Barkai, who honors himself and desecrates the items consecrated to Heaven. Due to his delicate nature and his disrespect for the Temple service, he would wrap his hands in silk [shirai] and perform the service. This would invalidate the service because the silk was an interposition between his hands and the Temple vessels. Furthermore, his conduct demeaned the Temple service, as he demonstrated that he was unwilling to dirty his hands for it.