[א] "ואיש אשר יגע במשכבו יכבס בגדיו" – אדם-נוגע-במשכב מטמא בגדים, ואין המשכב-הנוגע-במשכב מטמא בגדים. הלא דין הוא! ומה אם במקום שלא נטמא אדם-מתחת-הזב לטמא אדם ולטמא בגדים, נטמא משכב-מתחת-הזב לטמא אדם ולטמא בגדים, מקום שנטמא אדם-במגע-משכב לטמא אדם ולטמא בגדים אינו דין שיטמא משכב-במגע-משכב לטמא אדם ולטמא בגדים?! ת"ל "ואיש אשר יגע במשכבו יכבס בגדיו" – אדם-הנוגע-במשכבו מטמא בגדים, ואין המשכב-הנוגע-במשכב מטמא בגדים.
1) (Vayikra 15:5) ("And a man who touches what he lay upon shall wash his clothes and bathe in water, and he shall be unclean until the evening.") A man who touches a zav's couch confers tumah to his garments; but a zav's couch that touches (another) couch does not confer tumah to garments (lying upon it). (For if not for the verse,) would it not follow a fortiori that it (the other couch) should confer tumah to garments, viz.: If in a place where a man lying under a zav does not become tamei to confer tumah upon men and garments, a couch under a zav does become tamei to confer tumah upon men and garments, then in a place where a man becomes tamei by touching his couch to confer tumah to his garments, how much more so should a couch become tamei by touching a zav's couch to confer tumah to garments (lying upon it)! It must, therefore, be written: "And a man who touches what he lay upon shall wash his clothes" — A man who touches a zav's couch confers tumah to his garments; but a zav's couch that touches (another) couch does not confer tumah to garments (lying upon it).
[א] "ואיש אשר יגע במשכבו יכבס בגדיו" – אדם-נוגע-במשכב מטמא בגדים, ואין המשכב-הנוגע-במשכב מטמא בגדים. הלא דין הוא! ומה אם במקום שלא נטמא אדם-מתחת-הזב לטמא אדם ולטמא בגדים, נטמא משכב-מתחת-הזב לטמא אדם ולטמא בגדים, מקום שנטמא אדם-במגע-משכב לטמא אדם ולטמא בגדים אינו דין שיטמא משכב-במגע-משכב לטמא אדם ולטמא בגדים?! ת"ל "ואיש אשר יגע במשכבו יכבס בגדיו" – אדם-הנוגע-במשכבו מטמא בגדים, ואין המשכב-הנוגע-במשכב מטמא בגדים.
1) (Vayikra 15:5) ("And a man who touches what he lay upon shall wash his clothes and bathe in water, and he shall be unclean until the evening.") A man who touches a zav's couch confers tumah to his garments; but a zav's couch that touches (another) couch does not confer tumah to garments (lying upon it). (For if not for the verse,) would it not follow a fortiori that it (the other couch) should confer tumah to garments, viz.: If in a place where a man lying under a zav does not become tamei to confer tumah upon men and garments, a couch under a zav does become tamei to confer tumah upon men and garments, then in a place where a man becomes tamei by touching his couch to confer tumah to his garments, how much more so should a couch become tamei by touching a zav's couch to confer tumah to garments (lying upon it)! It must, therefore, be written: "And a man who touches what he lay upon shall wash his clothes" — A man who touches a zav's couch confers tumah to his garments; but a zav's couch that touches (another) couch does not confer tumah to garments (lying upon it).