तदभिमृशेदनु वा मन्त्रयेत यन्मेऽद्य रेतः पृथिवीमस्कान्त्सीद्यदोषधीरप्यसरद्यदपः ।इदमहं तद्रेत आददे ।पुनर्मामैतु इन्द्रियं पुनस्तेजः पुनर्भगः ।पुनरग्निर्धिष्ण्या यथास्थानं कल्पन्ताम् ।इत्यनामिकाङ्गुष्ठाभ्यामादायान्तरेण स्तनौ वा भ्रुवौ वा निमृज्यात् ॥६,४.५ ॥
In plain words
let him touch it and say over it: "Whatever seed of mine has been spilled upon the earth today, or has flowed into the plants or into the waters, this seed I take back. May vigour come to me again, and splendour again, and good fortune again; and may the fires upon their hearths be set each in its own place again." Taking it up with the ring finger and the thumb, let him rub it between his breasts or his eyebrows.
The commentators
Bṛhadāraṇyakopaniṣadbhāṣyam· bhāṣya
तदभिमृशेत्, अनुमन्त्रयेत वा अनुजपेदित्यर्थः । यदा अभिमृशति, तदा अनामिकाङ्गुष्ठाभ्यां तद्रेत आदत्ते 'आ- ददे' इत्येवमन्तेन मन्त्रेण ; 'पुनर्माम्' इत्येतेन निमृज्यात् अन्तरेण मध्ये भ्रुवौ भ्रुवोर्वा, स्तनौ स्तनयोर्वा ॥
In plain words
'He should touch it' simply means: recite the mantra over it, or murmur it under his breath. The moment he touches it, he lifts that seed with ring finger and thumb, on the words ending 'ādade' — 'I take.' Then, on the words 'back to me,' he wipes it away in between — at the eyebrows, or the breasts, whichever is closer to hand.
Close to the Sanskrit
'He should touch it' — meaning he should recite the accompanying mantra, or murmur it silently. When he touches it, at that time, with the ring finger and thumb he takes up that semen, with the mantra ending in the words 'ādade' ('I take'); with the words 'punar mām' ('back to me'), he should wipe it in between — in the middle, at the eyebrows or between the two eyebrows, or at the breasts or between the two breasts.