Sayyiduna Abu Umamah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "When the servant stands in prayer, Paradise is opened for him, the veils between him and his Lord are lifted, and the wide-eyed houris come before him, as long as he does not spit or blow his nose."
Al-Tabarani recorded it in al-Mu'jam al-Kabir by way of Tarif bin al-Salt from al-Hajjaj bin Abdullah bin Harim; I have not found anyone who has given a biography of either of them.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2010
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«المعجم الكبير للطبراني باب الصاد ما اسند ابو امامة إسماعيل الشامي لم ينسب ، 7865 ، أخرجه المعجم الكبير للطبراني برقم: 7980»