It is reported about Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that he used to say: Four things are part of coarseness (jafa'): that a man hears the mu'adhdhin saying "Allahu akbar, Allahu akbar, ashhadu an la ilaha illallah (Allah is the Greatest, Allah is the Greatest, I bear witness that there is no god but Allah)" and then does not say the like of what he is saying; that a man wipes his face (that is, clears away dust and the like) before completing his prayer; that a man urinates standing; and that a man prays in such a way that there is nothing between him and the qiblah to serve as a sutrah (screen) for him.
Imam al-Tabarani recorded this narration in al-Mu'jam al-Kabir; the narrator al-Musayyab bin Rafi' did not hear from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 1873